A cable pre-storage device for photovoltaic cable production

Abstract

The present application relates to the field of cable processing equipment, and in particular to a cable pre-storage device for photovoltaic cable production, comprising a front winding platform, a cable wheel rotatably connected to the front winding platform to drive cable transmission, a front winding motor driving the cable wheel to rotate, a fixed wheel and a movable wheel located behind the front winding platform in the direction of cable transmission, and a tangent clamping mechanism located behind the fixed wheel and the movable wheel in the direction of cable transmission to cut the cable and clamp the cable near one end of the movable wheel after cutting. The spacing between the movable wheel and the fixed wheel can be changed so that after one end of the cable is cut, the cable wheel can continue to actively transport the cable, and the spacing between the movable wheel and the fixed wheel becomes larger so that the cable can be temporarily stored between the movable wheel and the fixed wheel until the cable reel is replaced, thereby reducing the impact on the cable winding efficiency.

Description

Technical Field

[0001] The present application relates to the field of cable processing equipment, and in particular to a cable pre-storage device for photovoltaic cable production. Background Art

[0002] The production of photovoltaic cables goes through steps such as pay-out, wire bundling, insulation layer extrusion, outer layer extrusion, radiation cross-linking and final winding. The devices corresponding to each step will form a production line in a straight line. It is difficult to achieve consistency in the cable transmission speed between two adjacent steps, especially between cable winding and the previous step. After the cable has been wound up to a certain length, the corresponding cable reel needs to be replaced, which is more likely to cause a large change in the cable transmission speed between the two steps without stopping the machine. For this reason, it is necessary to put a cache or pre-store related devices between the corresponding steps that can store a part of the cable to achieve cable speed adjustment.

[0003] For example, the online cache structure of the cable processing line with announcement number CN220484969U utilizes the spacing adjustment between the movable wire wheel and the fixed wire wheel to change the length of cable that can be stored between the movable wire wheel and the fixed wire wheel, thereby realizing the cable speed adjustment of the previous and next process steps.

[0004] With regard to the above-mentioned related technologies, it is generally necessary to cut the corresponding cable when winding the cable so as to replace the cable reel that winds a certain length of cable. During this period, the movable reel and the fixed reel cannot rewind the cable released in the previous step, resulting in the cable produced in the previous step being placed randomly. After the cable reel is replaced, the cable needs to be straightened out to prevent the cable from getting tangled, which has a certain impact on the cable winding efficiency. Summary of the invention

[0005] In order to reduce the impact on cable winding efficiency, the present application provides a cable pre-storage device for photovoltaic cable production.

[0006] The present application provides a cable pre-storage device for photovoltaic cable production that adopts the following technical solution.

[0007] A cable pre-storage device for photovoltaic cable production includes a front winding platform, a cable wheel rotatably connected to the front winding platform to drive cable transmission, a front winding motor driving the cable wheel to rotate, a fixed wheel and a movable wheel located behind the front winding platform in accordance with the cable transmission direction, and a tangent clamping mechanism located behind the fixed wheel and the movable wheel in accordance with the cable transmission direction to cut the cable and clamp the cable near one end of the movable wheel after cutting, and the spacing between the movable wheel and the fixed wheel can be changed.

[0008] By adopting the above technical solution, when a cable reel has enough cable to be wound up and the cable reel needs to be replaced, the cable is first cut and the corresponding end is clamped, the cable wheel keeps conveying the cable transmitted in the previous step, and the distance between the movable wheel and the fixed wheel becomes larger, so that the cable transmitted by the cable wheel can be pre-stored between the movable wheel and the fixed wheel. After the cable reel is replaced, the clamped end of the cable is connected and fixed to the new cable reel, so that the new cable reel can rewind the cable, reducing the impact on the cable reeling efficiency.

[0009] Optionally, there is a pre-storage rack above the front winding platform, the fixed wheel is rotatably connected to the pre-storage rack, the pre-storage rack is slidably connected to a wheel slider along the length direction of the cable production line, the movable wheel is rotatably connected to the wheel slider, the wheel slider is detachably connected to a tension sensor, the tension sensor is detachably connected to a tension rope, a winch capable of winding the tension rope is provided at one end of the pre-storage rack away from the fixed wheel, and the winch and the tension sensor are electrically connected to a controller;

[0010] When the tension value detected by the tension sensor is less than the minimum value within the preset tension range in the controller, the winch will reel in the tension rope; when the tension value detected by the tension sensor is greater than the maximum value within the preset tension range in the controller, the winch will release the tension rope.

[0011] By adopting the above technical solution, the distance between the movable wheel and the fixed wheel can be adjusted accordingly according to the tension of the cable, so that the cable is always maintained at an appropriate tension during the pre-storage process.

[0012] Optionally, the tension cable includes a steel cable for the winch to be reeled in, a cable end block detachably connected to the steel cable, a guide rod fixedly connected to the wheel slider and for the cable end block to slide along the moving direction of the wheel slider, and a tension spring detachably connected between the cable end block and the tension sensor and tending to contract.

[0013] By adopting the above technical solution, during the movement of the movable wheel, the angle between the steel cable and the moving direction of the wheel slider will change. If the tension sensor is directly connected to the steel cable, the tension sensor will not detect the tension borne by the cable between the movable wheel and the fixed wheel. It is difficult to judge the tension of the cable at this time by the tension value detected by the tension sensor, which increases the difficulty of judging the tension during the cable pre-storage process.

[0014] Optionally, the pre-storage rack is detachably connected to a displacement sensor whose slider is detachably connected to the wheel slider, and the pre-storage rack is detachably connected to a meter for measuring the length of the wound cable at one end near the tangent clamping mechanism, and the displacement sensor and the meter are electrically connected to the controller;

[0015] When the meter meter detects that the cable winding length begins to increase after the cable reel is replaced, the tension value detected by the tension sensor is greater than the maximum value within the preset tension range in the controller until the displacement sensor detects that the position of the wheel slider is at the preset position.

[0016] By adopting the above technical solution, after the new cable reel is replaced, it will start to reel in the cable at a faster speed so that the movable wheel can gradually approach the fixed wheel. Until the movable wheel reaches the preset position, the cable reel will resume the normal reeling speed, so that during the next replacement of the cable reel, there is no need to move the movable wheel close to the fixed wheel before starting the cable pre-storage work.

[0017] Optionally, the wire cutting and clamping mechanism includes a moving wire tube for passing the cable, a rear wire pressing block slidably connected to the moving wire tube and pressing the cable tightly, a knife block slidably connected to the rear wire pressing block along the moving direction of the rear wire pressing block, a wire cutting blade detachably connected to the knife block and capable of cutting the cable, a compression spring arranged between the knife block and the rear wire pressing block to force the two to move away from each other, and a rear wire pressing cylinder capable of driving the knife block to move toward the rear wire pressing block.

[0018] By adopting the above technical solution, it is ensured that the rear pressing block is first pressed tightly against the cable and then the cable is cut, so that the end surface of the cable is flat during the cutting process, and it is also convenient to connect and fix the cut end of the unreeled cable to the new cable reel.

[0019] Optionally, the knife block is detachably connected to a cylinder pressure sensor for a compression spring to abut against and electrically connected to the controller, and the extension speed of the power rod of the rear pressing cylinder is set to V 快 and V 慢 Two, V 快 >V 慢 ; When the pressure value detected by the cylinder pressure sensor is less than the preset pressure threshold, the rear pressure cylinder power rod 快 When the pressure value detected by the cylinder pressure sensor is greater than the preset pressure threshold, the rear pressing cylinder power rod 慢 Speed ​​elongation.

[0020] By adopting the above technical solution, the rear wire pressing cylinder first extends the power rod at a faster speed so that the wire cutting blade can quickly approach the cable, and then the rear wire pressing cylinder extends the power rod at a slower speed so that the wire cutting blade can cut the cable at a slower speed, thereby improving the quality of the cable cutting end surface and minimizing damage to the larger part of the cable or to the wire cutting blade.

[0021] Optionally, the front winding platform is slidably connected to two platform sliders, there is an angle between the sliding direction of the two platform sliders and the moving direction of the movable wheel relative to the fixed wheel, the two platform sliders are rotatably connected to a pay-off wheel for cable transmission, a bidirectional lead screw with opposite thread directions at both ends is rotatably connected inside the front winding platform, the two ends of the bidirectional lead screw with opposite thread directions are threadedly connected to the two platform sliders in a one-to-one manner, and the front winding platform is provided with a lead screw motor which drives the bidirectional lead screw to rotate and is electrically connected to the controller.

[0022] By adopting the above technical solution, when the rear wire pressing cylinder extends the power rod at a slower speed, the pressure applied to the cable by the rear wire pressing block slowly increases. In order to reduce the possibility of the cable moving in the moving wire tube when the movable wheel moves away from the fixed wheel at a fixed speed, the two pay-off wheels are close to each other to minimize the tension of the cable at this time, so as to ensure that the rear wire pressing block can effectively press the cable when the tangent blade slowly cuts the cable.

[0023] Optionally, the moving line pipe is detachably connected to a rear tube slider slidably connected to the pre-storage rack, the pre-storage rack is fixedly connected to a rack rack, the rear tube slider is rotatably connected to a block gear meshing with the rack rack, the rear tube slider is provided with a line dragging motor driving the block gear to rotate, the pre-storage rack is connected to a front tube slider, the front tube slider is fixedly connected to a line fixing pipe for cable threading, the line fixing pipe is located in front of the moving line pipe in the cable transmission direction, the line fixing pipe is slidably connected to a front wire pressing block that can press the cable tightly, and the front tube slider is provided with a front wire pressing cylinder that can drive the front wire pressing block to move toward the cable.

[0024] By adopting the above technical solution, after the cable is cut, the rear tube slider moves away from the cable fixing tube, so that the clamped end of the cable moves to the new cable reel and is dragged out a sufficient length so that one end of the cable and the cable reel can be connected and fixed to reel up the cable, and after the rear tube slider moves to the specified position, the front wire pressing block will fix the cable so that the rear wire pressing block does not need to be pressed tightly on the cable at this time, so as to ensure that in the process of fixing one end of the cable to the cable reel, the cable can remain taut when the movable wheel and the fixed wheel are far away from each other.

[0025] Optionally, the front tube slider is slidably connected to the pre-storage rack along the moving direction of the rear tube slider, the pre-storage rack is detachably connected to a wire-paying pressure sensor electrically connected to the controller, and a pressure-relieving spring is provided between the wire-paying pressure sensor and the front tube slider to force the front tube slider away from the rear tube slider; when the pressure value detected by the wire-paying pressure sensor is greater than a preset pressure threshold, the front wire pressing cylinder drives the front wire pressing block away from the cable.

[0026] By adopting the above technical solution, when the cable starts to be wound after the connection between the cable and the cable reel is completed, the front tube slider will be dragged to move a short distance first. At this time, due to the increase in the tension of the cable, the steel cable is released, and the distance between the movable wheel and the fixed wheel is reduced. Until the pressure relief spring is compressed to a certain extent, the front pressure block no longer fixes the cable, so that the cable winding and cable release can be better connected, so as to reduce the tension on the cable at the beginning of winding.

[0027] Optionally, the pre-storage rack is slidably connected to a longitudinal slider, the longitudinal slider is detachably connected to a clamping cylinder, the end of the clamping cylinder power rod is detachably connected to a pneumatic finger that clamps the cable after cutting close to one end of the fixed line tube, and the pre-storage rack is detachably connected to a longitudinal movement cylinder that can move the longitudinal slider away from the moving line tube and close to the cable reel.

[0028] By adopting the above technical solution, one end of the cable clamped by the rear wire pressing block can be clamped by the pneumatic fingers and driven close to the cable reel, and then the rear tube slider can be reset, so that one end of the cable can be more conveniently taken and connected to the cable reel, and the cable is not easily detached from the moving wire tube.

[0029] In summary, the present application includes at least the following beneficial effects.

[0030] When there is enough cable to be rolled up on a cable reel and the cable reel needs to be replaced, the cable is first cut and the corresponding end is clamped. The cable wheel keeps conveying the cable transmitted in the previous step, and the distance between the movable wheel and the fixed wheel becomes larger so that the cable transmitted by the cable wheel can be pre-stored between the movable wheel and the fixed wheel. After the cable reel is replaced, the clamped end of the cable is connected and fixed to the new cable reel so that the new cable reel can rewind the cable, reducing the impact on the cable reeling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of this application;

[0032] Figure 2 is the control system diagram of this application;

[0033] Figure 3 It is a structural schematic diagram of the pre-stocking rack at one end of the fixed wheel;

[0034] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0035] Explanation of the reference numerals: 1. front winding platform; 11. longitudinal cylinder; 12. front winding motor; 2. cable wheel; 21. rear tube slider; 22. block gear; 23. line dragging motor; 24. front tube slider; 25. line release pressure sensor; 26. pressure relief spring; 27. longitudinal slider; 28. clamping cylinder; 29. ​​pneumatic finger; 3. fixed wheel; 31. line release wheel; 32. bidirectional lead screw; 33. lead screw motor; 34. rear line pressing cylinder; 35. cylinder pressure sensor; 36. line setting tube; 37. front line pressing block ;38. Front pressing cylinder;39. Rack;4. Movable wheel;41. Tension spring;42. Displacement sensor;43. Meter;44. Moving wire tube;45. Rear pressing block;46. Knife block;47. Wire cutting blade;48. Compression spring;49. Table slide block;5. Wire cutting clamping mechanism;51. Pre-storage rack;52. Wheel slide block;53. Tension sensor;54. Tension rope;55. Winch;56. Controller;57. Steel rope;58. Rope end block;59. Guide rod;6. Cable reel. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] The present application embodiment discloses a cable pre-storage device for photovoltaic cable production, referring to Figure 1 , including a front reel 1 placed on the ground, in which two cable wheels 2 with horizontal connection directions are rotatably connected, and the front reel 1 is detachably connected to a front reel motor 12 whose output shaft is coaxially detachably connected to one cable wheel 2, and the cable is sent out after being driven several times at the two cable wheels 2. A pre-storage rack 51 whose length direction is consistent with the length direction of the cable production line is placed on the ground, and there are a movable wheel 4 and a fixed wheel 3 on one side of the upper part of the pre-storage rack 51. The cable sent out from the front reel 1 is driven several times between the movable wheel 4 and the fixed wheel 3 before being sent out and reeled by the subsequent cable reel 6. The spacing between the movable wheel 4 and the fixed wheel 3 can be adjusted, and the pre-storage rack 51 is equipped with a tangent clamping mechanism 5 that cuts the cable sent out from between the movable wheel 4 and the fixed wheel 3 and clamps the cable near one end of the fixed wheel 3 after cutting, so that in the process of replacing the cable reel 6, the movable wheel 4 and the fixed wheel 3 can be separated to store the cable sent out from the front reel 1.

[0038] Reference Figure 1 and Figure 2The fixed wheel 3 is closer to the cable reel 6 than the movable wheel 4. The fixed wheel 3 is rotatably connected to the pre-storage rack 51. The pre-storage rack 51 is slidably connected to the wheel slider 52 along its length direction. The movable wheel 4 is rotatably connected to the wheel slider 52. The wheel slider 52 is detachably connected to a tension sensor 53 at the side away from the fixed wheel 3. The tension sensor 53 is connected to a tension cable 54 at the detection end. The tension cable 54 includes a tension spring 41 detachably connected to the tension sensor 53, and the tension spring 41 tends to contract. The end of the tension spring 41 away from the wheel slider 52 is detachably connected to a cable end block 58, the wheel slider 52 is fixedly connected to a guide rail rod 59 whose length direction is consistent with the length direction of the pre-stocking rack 51, the cable end block 58 is sleeved along the length direction of the guide rail rod 59 and is slidably connected to the guide rail rod 59, the cable end block 58 is fixedly connected to a steel cable 57 at one side away from the tension spring 41, and the upper part of the pre-stocking rack 51 away from the fixed wheel 3 is detachably connected to a winch 55, and the winch 55 can reel in or release the steel cable. The winch 55 and the tension sensor 53 are electrically connected to a controller 56.

[0039] When the tension value detected by the tension sensor 53 is less than the minimum value within the preset tension range in the controller 56, the winch 55 reels the tension rope 54; when the tension value detected by the tension sensor 53 is greater than the maximum value within the preset tension range in the controller 56, the winch 55 releases the tension rope 54, so that the movable wheel 4 can be moved away from the fixed wheel 3 in time when the cable reel 6 is replaced, so as to keep the cable between the movable wheel 4 and the fixed wheel 3 taut.

[0040] Reference Figure 3 and Figure 4 The tangent clamping mechanism 5 includes a rear tube slider 21 installed on the pre-storage rack 51, and the rear tube slider 21 is fixedly connected with two moving wire tubes 44 whose length direction is consistent with the length direction of the pre-storage rack 51. The two moving wire tubes 44 have the same axis, and the cables are passed through the two moving wire tubes 44. The upper parts of the two moving wire tubes 44 are slidably connected with a rear wire pressing block 45 that can be pressed against the cable in the vertical direction, and the upper parts of the two rear wire pressing blocks 45 are slidably connected with the same knife block 46 in the vertical direction. The knife block 46 is detachably connected with a tangent blade 47 located between the two moving wire tubes 44, and a compression spring 48 is installed between the knife block 46 and the rear wire pressing block 45. The compression spring 48 forces the knife block 46 and the rear wire pressing block 45 to move away from each other, and the knife block 46 is located in the rear wire pressing block 45. The end of the width of the knife block 46 is larger and matched with the stopper installed on the rear wire pressing block 45, so that the knife block 46 cannot be separated from the rear wire pressing block 45. The rear tube slide block 21 is detachably connected to a power rod detachably connected to a rear wire pressing cylinder 34 on the upper portion of the knife block 46 , and the rear wire pressing cylinder 34 is electrically connected to the controller 56 .

[0041] Reference Figure 3 and Figure 4The pre-stock rack 51 is located between the fixed wheel 3 and the moving line tube 44 and is equipped with a meter counter 43, which is electrically connected to the controller 56. The cable passes through the meter counter 43 to count the length of the cable winding. When the cable length detected by the meter counter 43 is equal to the preset length in the controller 56, the rear pressing cylinder 34 operates to cut the cable, and the controller 56 clears the cable length counted by the meter counter 43. In addition, the knife block 46 is detachably connected to a cylinder pressure sensor 35 for abutment by the compression spring 48, and the cylinder pressure sensor 35 is electrically connected to the controller 56. The extension speed of the power rod of the rear pressing cylinder 34 is set to V 快 and V 慢 Two, V 快 >V 慢 When the pressure value detected by the cylinder pressure sensor 35 is less than the preset pressure threshold, the rear pressure cylinder 34 power rod V 快 When the pressure value detected by the cylinder pressure sensor 35 is greater than the preset pressure threshold, the cutting blade 47 is close to the cable, and the rear pressing cylinder 34 power rod is V 慢 The speed is extended so that the cutting blade 47 approaches the cable at a faster speed first and then cuts the cable at a slower speed, so that the cable and the cutting blade 47 are not easily damaged when the cable is cut.

[0042] Reference Figure 3 The front winding platform 1 is slidably connected to two platform sliders 49 in the vertical direction. Both platform sliders 49 are rotatably connected to the pay-off wheels 31. The two pay-off wheels 31 are located between the two cable wheels 2, and the two pay-off wheels 31 are far away from each other for the cable to pass through. A bidirectional lead screw 32 is rotatably connected to the two platform sliders 49 through a thread. The thread directions on both sides of the center point of the bidirectional lead screw 32 are opposite. The two platform sliders 49 are located at equal distances on both sides of the center point of the bidirectional lead screw 32, so that the two platform sliders 49 move synchronously in opposite directions. The front winding platform 1 is detachably connected to a lead screw motor 33 whose output shaft is coaxially detachably connected to the bidirectional lead screw 32, so that when the tangent blade 47 performs cable slitting at a slower speed and the movable wheel 4 moves away from the fixed wheel 3 at a constant speed, the two pay-off wheels 31 are close to each other, so as to reduce the possibility of the part of the cable located in the moving wire tube 44 being pulled and moved, and to minimize the impact on the cable slitting process.

[0043] Reference Figure 3 and Figure 4, the rear tube slider 21 is slidably connected to the pre-storage rack 51 along the length direction of the pre-storage rack 51, the rear tube slider 21 is rotatably connected to the block gear 22, the rear tube slider 21 is detachably connected to the towing motor 23 whose output shaft is coaxially detachably connected to the block gear 22, the towing motor 23 is electrically connected to the controller 56, and the pre-storage rack 51 is fixedly connected to the rack rack 39 for meshing with the block gear 22. The pre-storage rack 51 is located at the side of the rear tube slider 21 close to the fixed wheel 3 and is installed with the front tube slider 24, the front tube slider 24 is fixedly connected to the fixed line tube 36 with the same horizontal center line as the moving line tube 44, and the cable sent from the movable wheel 4 and the fixed wheel 3 first passes through the fixed line tube 36 and then passes through the moving line tube 44. The front tube slider 24 is detachably connected to the front wire pressing cylinder 38, and the bottom end of the power rod of the front wire pressing cylinder 38 is detachably connected to the front wire pressing block 37, and the front wire pressing block 37 is plugged and slidably connected to the upper part of the fixed line tube 36 in the vertical direction. After the cable is cut, the towing motor 23 runs, so that the rear tube slider 21 moves away from the front tube slider 24 until the moving wire tube 44 moves to the specified position, and then the power rod of the front wire pressing cylinder 38 is extended, so that the front wire pressing block 37 presses the cable tightly, so that the end of the cable after cutting is close to the cable reel 6.

[0044] Reference Figure 3 The pre-storage rack 51 is connected to a longitudinal slider 27 for sliding in the vertical direction. The pre-storage rack 51 is detachably connected to a longitudinal cylinder 11 whose power rod is detachably connected to the longitudinal slider 27. The longitudinal slider 27 is detachably connected to a clamping cylinder 28. The moving direction of the power rod of the clamping cylinder 28 is consistent with the horizontal width direction of the pre-storage rack 51. The power rod of the clamping cylinder 28 is detachably connected to a pneumatic finger 29 that can clamp the cable. The longitudinal cylinder 11, the clamping cylinder 28 and the pneumatic finger 29 are all electrically connected to the controller 56, so that after the moving line tube 44 moves to the specified position, the pneumatic finger 29 can clamp one end of the cable that is cut through the fixed line tube 36 and move it down to the cable reel 6. At the same time, the cutting blade 47 is close to the moving wire tube 44 which is farthest from the fixed wire tube 36 , so that the cable in the moving wire tube 44 close to the fixed wire tube 36 can have a certain length of drooping after cutting, so as to be clamped by the pneumatic finger 29 .

[0045] Reference Figure 3The front tube slider 24 is slidably connected to the pre-storage rack 51 along the length direction of the pre-storage rack 51, and the pre-storage rack 51 is detachably connected to a wire-releasing pressure sensor 25 electrically connected to the controller 56. A pressure-relieving spring 26 is detachably connected between the wire-releasing pressure sensor 25 and the side of the front tube slider 24 facing the rear tube slider 21, and the pressure-relieving spring 26 forces the front tube slider 24 to move away from the rear tube slider 21. When the cable is cut and one end is connected to the replaced cable reel 6 and begins to be wound, the front tube slider 24 will be pulled. When the pressure value detected by the wire-releasing pressure sensor 25 is greater than the preset pressure threshold, the front wire-pressing cylinder 38 drives the front wire-pressing block 37 away from the cable, so that the cable is not easily subjected to excessive tension during the initial winding process.

[0046] Reference Figure 1 The pre-storage rack 51 is detachably connected to a displacement sensor 42 electrically connected to a controller 56, and a slider of the displacement sensor 42 is detachably connected to the wheel slider 52, so that during the initial winding process of the cable, the cable reel 6 can be wound at a faster speed, so that the tension value detected by the tension sensor 53 is greater than the maximum value within the preset tension range in the controller 56, so that the movable wheel 4 is close to the fixed wheel 3, until the displacement sensor 42 detects that the position of the wheel slider 52 is at the preset position, and then the winding speed of the cable reel 6 returns to normal, so that the movable wheel 4 can move a sufficient distance again for cable pre-storage after the cable reel 6 is wound to a sufficient length next time.

[0047] The implementation principle of a cable pre-storage device for photovoltaic cable production in an embodiment of the present application is as follows: when the meter 43 detects that the length of the cable has reached a preset value, the cable reel 6 stops rotating, and at the same time, the power rod of the rear wire pressing cylinder 34 first extends rapidly, so that the rear wire pressing block 45 is initially pressed against the cable of the moving wire tube 44, and then when the pressure value detected by the cylinder pressure sensor 35 is greater than the preset pressure threshold, the power rod of the rear wire pressing cylinder 34 will slowly extend, so that the cutting blade 47 can cut the cable at a slower speed, and during this period, the screw motor 33 runs to make the two pay-off wheels 31 close to each other, and when the tension value detected by the tension sensor 53 is less than the minimum value within the preset tension range in the controller 56, the winch 55 will reel in the tension rope 54 until the power rod of the rear wire pressing cylinder 34 extends to the preset distance, at which time the cable has been cut.

[0048] Then the wire dragging motor 23 is operated to make the rear tube slider 21 away from the front tube slider 24. After the wire dragging motor 23 runs for a predetermined time or a predetermined number of turns, the moving wire tube 44 moves to a designated position to move the cut end of the cable to pass directly above the cable reel 6. The power rod of the clamping cylinder 28 is extended so that the pneumatic finger 29 clamps the end of the cable passing through the fixed wire tube 36 in the moving wire tube 44. Then the power rod of the longitudinal cylinder 11 is extended by a predetermined length so that the pneumatic finger 29 drives one end of the cable to move down to a designated position. When the pneumatic finger 29 clamps the cable, the power rod of the rear pressing cylinder 34 contracts so that the two ends formed after the cable is cut are no longer clamped. At this time, the cable reel 6 that has been wound up can be replaced. After the longitudinal movement cylinder 11 completes the extension of the power rod, the power rod of the front pressing cylinder 38 extends, so that the front pressing block 37 is pressed against the cable. After the cable reel 6 is replaced, the end of the cable clamped by the pneumatic finger 29 can be removed and connected to the cable reel 6.

[0049] Then the cable reel 6 starts to rotate at a faster speed to reel the cable. At this time, the front tube slider 24 is dragged. When the pressure value detected by the pay-off pressure sensor 25 is greater than the preset pressure threshold, the front pressure cylinder 38 drives the front pressure block 37 away from the cable. At the same time, when the meter 43 detects that the cable reel length begins to increase after the cable reel 6 is replaced, the tension value detected by the tension sensor 53 is greater than the maximum value within the preset tension range in the controller 56, and the winch 55 releases the steel cable 57, so that the movable wheel 4 is close to the fixed wheel 3, until the displacement sensor 42 detects that the position of the wheel slider 52 is at the preset position, the cable reel 6 resumes the normal reeling speed, so that the tension value detected by the tension sensor 53 is within the preset tension range in the controller 56, and the steel cable 57 is no longer released. In addition, the lead screw motor 33 also runs synchronously to move the two pay-off wheels 31 away from each other, so that the cable reel 6 can be replaced again after the subsequent cable reel 6 completes a new round of reeling.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable pre-storage device for photovoltaic cable production, characterized in that: The invention comprises a front winding platform (1), a cable wheel (2) rotatably connected to the front winding platform (1) to drive the cable transmission, a front winding motor (12) driving the cable wheel (2) to rotate, a fixed wheel (3) and a movable wheel (4) located behind the front winding platform (1) in accordance with the cable transmission direction, and a tangent clamping mechanism (5) located behind the fixed wheel (3) and the movable wheel (4) in accordance with the cable transmission direction to cut the cable and clamp the cable near one end of the movable wheel (4) after the cable is cut, and the spacing between the movable wheel (4) and the fixed wheel (3) can be changed; A pre-storage rack (51) is provided above the front winding platform (1); the fixed wheel (3) is rotatably connected to the pre-storage rack (51); the pre-storage rack (51) is slidably connected to a wheel slider (52) along the length direction of the cable production line; the movable wheel (4) is rotatably connected to the wheel slider (52); the wheel slider (52) is detachably connected to a tension sensor (53); the tension sensor (53) is detachably connected to a tension rope (54); a winch (55) capable of winding the tension rope (54) is provided at one end of the pre-storage rack (51) away from the fixed wheel (3); the winch (55) and the tension sensor (53) are electrically connected to a controller (56); When the tension value detected by the tension sensor (53) is less than the minimum value within the tension range preset in the controller (56), the winch (55) reels the tension rope (54); when the tension value detected by the tension sensor (53) is greater than the maximum value within the tension range preset in the controller (56), the winch (55) releases the tension rope (54); The wire cutting and clamping mechanism (5) comprises a moving wire tube (44) for passing the cable, a rear wire pressing block (45) slidably connected to the moving wire tube (44) and pressing the cable tightly, a knife block (46) slidably connected to the rear wire pressing block (45) along the moving direction of the rear wire pressing block (45), a wire cutting blade (47) detachably connected to the knife block (46) and capable of cutting the cable, a compression spring (48) provided between the knife block (46) and the rear wire pressing block (45) to force the two to move away from each other, and a rear wire pressing cylinder (34) capable of driving the knife block (46) to move toward the rear wire pressing block (45); The knife block (46) is detachably connected to a cylinder pressure sensor (35) for abutting against a compression spring (48) and electrically connected to a controller (56). The extension speed of the power rod of the rear pressing cylinder (34) is set to V 快 and V 慢 Two, V 快 >V 慢 When the pressure value detected by the cylinder pressure sensor (35) is less than the preset pressure threshold, the power rod of the rear pressing cylinder (34) is V 快 When the pressure value detected by the cylinder pressure sensor (35) is greater than the preset pressure threshold, the power rod of the rear pressing cylinder (34) is extended at V 慢 Speed ​​elongation; The front winding platform (1) is slidably connected to two platform sliders (49), and there is an angle between the sliding direction of the two platform sliders (49) and the moving direction of the movable wheel (4) relative to the fixed wheel (3). The two platform sliders (49) are both rotatably connected to a pay-off wheel (31) for cable transmission. A bidirectional lead screw (32) with opposite thread directions at both ends is rotatably connected inside the front winding platform (1). The two ends of the bidirectional lead screw (32) with opposite thread directions are correspondingly threadedly connected to the two platform sliders (49) one by one. The front winding platform (1) is provided with a lead screw motor (33) that drives the bidirectional lead screw (32) to rotate and is electrically connected to a controller (56).

2. A cable pre-storage device for photovoltaic cable production according to claim 1, characterized in that: The tension cable (54) includes a steel cable (57) for winding up the winch (55), a cable end block (58) detachably connected to the steel cable (57), a guide rod (59) fixedly connected to the wheel slider (52) and allowing the cable end block (58) to slide along the moving direction of the wheel slider (52), and a tension spring (41) detachably connected between the cable end block (58) and the tension sensor (53) and tending to contract.

3. A cable pre-storage device for photovoltaic cable production according to claim 1, characterized in that: The pre-storage rack (51) is detachably connected to a displacement sensor (42) whose slider is detachably connected to a wheel slider (52); a meter (43) for measuring the length of the wound cable is detachably connected to one end of the pre-storage rack (51) near the tangent clamping mechanism (5); the displacement sensor (42) and the meter (43) are electrically connected to a controller (56); When the meter meter (43) detects that the cable winding length begins to increase after the cable reel (6) is replaced, the tension value detected by the tension sensor (53) is greater than the maximum value within the preset tension range in the controller (56), until the displacement sensor (42) detects that the position of the wheel slider (52) is at the preset position.

4. A cable pre-storage device for photovoltaic cable production according to claim 1, characterized in that: The moving line pipe (44) is detachably connected to a rear pipe slider (21) slidably connected to a pre-storage rack (51); the pre-storage rack (51) is fixedly connected to a rack rack (39); the rear pipe slider (21) is rotatably connected to a block gear (22) meshed with the rack rack (39); the rear pipe slider (21) is provided with a towing line motor (23) for driving the block gear (22) to rotate; the pre-storage rack (51) is connected to a front pipe slider (24); the front pipe slider (24) is fixedly connected to a line fixing pipe (36) for cable threading; the line fixing pipe (36) is located in front of the moving line pipe (44) in accordance with the cable transmission direction; the line fixing pipe (36) is slidably connected to a front line pressing block (37) capable of pressing the cable tightly; the front pipe slider (24) is provided with a front line pressing cylinder (38) capable of driving the front line pressing block (37) to move toward the cable.

5. A cable pre-storage device for photovoltaic cable production according to claim 4, characterized in that: The front tube slider (24) is slidably connected to the pre-storage rack (51) along the moving direction of the rear tube slider (21); the pre-storage rack (51) is detachably connected to a wire-releasing pressure sensor (25) electrically connected to a controller (56); a pressure-relieving spring (26) for forcing the front tube slider (24) to move away from the rear tube slider (21) is provided between the wire-releasing pressure sensor (25) and the front tube slider (24); when the pressure value detected by the wire-releasing pressure sensor (25) is greater than a preset pressure threshold, the front wire-pressing cylinder (38) drives the front wire-pressing block (37) to move away from the cable.

6. A cable pre-storage device for photovoltaic cable production according to claim 4, characterized in that: The pre-storage rack (51) is slidably connected to a longitudinal slider (27), the longitudinal slider (27) is detachably connected to a clamping cylinder (28), the end of a power rod of the clamping cylinder (28) is detachably connected to a pneumatic finger (29) for clamping the split cable close to one end of the fixed line tube (36), and the pre-storage rack (51) is detachably connected to a longitudinal movement cylinder (11) capable of moving the longitudinal slider (27) away from the moving line tube (44) and close to the cable reel (6).

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